The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
G. Marcus et al., “X-ray Regenerative Amplifier Free-Electron Laser Concepts for LCLS-II”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper MOP061, pp. 192-195, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-MOP061, 2018.